1WBB
Crystal structure of E. coli DNA mismatch repair enzyme MutS, E38A mutant, in complex with a G.T mismatch
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1E3M | PDB ENTRY 1E3M |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 7.5 | 25 MM HEPES(7.5), 300 MM NACL, 10 MM MGCL2, 14 % PEG 6000., pH 7.50 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.6 | 56.2 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 89.553 | α = 90 |
b = 92.494 | β = 90 |
c = 261.264 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC CCD | SAGITAL FOCUSSING GE (220) AND MULTILAYER. | 2002-11-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-1 | ESRF | ID14-1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 2.5 | 20 | 99.3 | 0.11 | 9.81 | 3.12 | 75289 | 53.02 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.5 | 2.59 | 98.3 | 0.72 | 1.48 | 3.06 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1E3M | 2.5 | 20 | 73763 | 1452 | 99.3 | 0.221 | 0.22 | 0.27 | SAME AS FOR ENTRY 1E3M | 18.08 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-2.169 | 4.915 | -2.746 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_1_deg | 6.067 |
r_scangle_it | 1.763 |
r_angle_refined_deg | 1.225 |
r_scbond_it | 1.041 |
r_angle_other_deg | 0.799 |
r_mcangle_it | 0.673 |
r_mcbond_it | 0.352 |
r_symmetry_vdw_refined | 0.22 |
r_nbd_other | 0.216 |
r_symmetry_vdw_other | 0.216 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 12163 |
Nucleic Acid Atoms | 714 |
Solvent Atoms | 285 |
Heterogen Atoms | 28 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |